A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 5996-00-577-0483
NSN 5975-00-452-9315
NSN 5910-00-587-0759
NSN 5945-01-285-6635
NSN 5905-01-378-7143
NSN 6150-01-066-1277
NSN 5950-01-123-9384
NSN 5990-00-210-2953
NSN 5855-01-258-6180
NSN 5945-00-773-3879
NSN 6150-01-292-2749
NSN 5985-00-079-2748